4 shows the initial data matrix for P/G% analysis. In the P/G% initial matrix, each data element is expressed in raw form (top row). The second row in each cell below Annual Energy Cost, Employment, and Emissions represents the quantity per dollar of investment for each of those categories. ) Then reciprocals of the raw data are presented for Investment, Annual Energy Cost, and Emissions. Reciprocals are used here because they retain the meaningful ratio differences between raw data scores, while reversing the direction, for categories where a lower or minimum score is best.